46 C.F.R. § 5.71 Maritime labor disputes.
Title 46 - Shipping
Under no circumstances will the Coast Guard exercise its authority for the purpose of favoring any party to a maritime labor controversy. However, if the situation affecting the safety of the vessel or persons on board is presented, the matter shall be thoroughly investigated and when a violation of existing statutes or regulations is indicated, appropriate action will be taken.
Title 46: Shipping
PART 5—MARINE INVESTIGATION REGULATIONS—PERSONNEL ACTION
Subpart C—Statement of Policy and Interpretation
§ 5.71 Maritime labor disputes.

